/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package club.dawdler.boot.web.undertow.compression;

import java.util.Set;

import io.undertow.predicate.Predicate;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.Headers;

/**
 * @author jackson.song
 * @version V1.0
 * 符合mimeTypes的压缩条件
 */
public class CompressibleMimeTypePredicate implements Predicate {
	private final Set<String> mimeTypes;

	public CompressibleMimeTypePredicate(Set<String> mimeTypes) {
		this.mimeTypes = mimeTypes;
	}

	@Override
	public boolean resolve(HttpServerExchange value) {
		String contentType = value.getResponseHeaders().getFirst(Headers.CONTENT_TYPE);
		if (contentType != null) {
			int index = contentType.indexOf(";");
			if (index > 0) {
				contentType = contentType.substring(0, index);
			}
			return mimeTypes.contains(contentType);
		}
		return false;
	}

}
